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Flavor symmetries in the Yukawa sector of non-supersymmetric SO(10): numerical fits using renormalization group running
KTH, School of Engineering Sciences (SCI), Physics, Particle and Astroparticle Physics. AlbaNova Univ Ctr, Oskar Klein Ctr Cosmoparticle Phys, Roslagstullsbacken 21, SE-10691 Stockholm, Sweden; Univ Iceland, Sci Inst, Dunhaga 3, IS-107 Reykjavik, Iceland.ORCID iD: 0000-0002-3525-8349
KTH, School of Engineering Sciences (SCI), Physics, Theoretical Particle Physics. AlbaNova Univ Ctr, Oskar Klein Ctr Cosmoparticle Phys, Roslagstullsbacken 21, SE-10691 Stockholm, Sweden.ORCID iD: 0000-0002-6238-5511
2021 (English)In: Journal of High Energy Physics (JHEP), ISSN 1126-6708, E-ISSN 1029-8479, Vol. 2021, no 9, article id 111Article in journal (Refereed) Published
Abstract [en]

We consider a class of SO(10) models with flavor symmetries in the Yukawa sector and investigate their viability by performing numerical fits to the fermion masses and mixing parameters. The fitting procedure involves a top-down approach in which we solve the renormalization group equations from the scale of grand unification down to the electroweak scale. This allows the intermediate scale right-handed neutrinos and scalar triplet, involved in the type I and II seesaw mechanisms, to be integrated out at their corresponding mass scales, leading to a correct renormalization group running. The result is that, of the 14 models considered, only two are able to fit the known data well. Both these two models correspond to Z(2) symmetries. In addition to being able to fit the fermion masses and mixing parameters, they provide predictions for the sum of light neutrino masses and the effective neutrinoless double beta decay mass parameter, which are both within current observational bounds.

Place, publisher, year, edition, pages
Springer Nature , 2021. Vol. 2021, no 9, article id 111
Keywords [en]
Beyond Standard Model, Discrete Symmetries, GUT, Neutrino Physics
National Category
Subatomic Physics
Identifiers
URN: urn:nbn:se:kth:diva-303051DOI: 10.1007/JHEP09(2021)111ISI: 000697366300001Scopus ID: 2-s2.0-85115219413OAI: oai:DiVA.org:kth-303051DiVA, id: diva2:1600477
Note

QC 20250401

Available from: 2021-10-05 Created: 2021-10-05 Last updated: 2025-04-01Bibliographically approved
In thesis
1. Models of SO(10) Grand Unified Theories: Yukawa Sector and Gauge Coupling Unification
Open this publication in new window or tab >>Models of SO(10) Grand Unified Theories: Yukawa Sector and Gauge Coupling Unification
2021 (English)Doctoral thesis, comprehensive summary (Other academic)
Place, publisher, year, edition, pages
Stockholm: KTH Royal Institute of Technology, 2021. p. 215
Series
TRITA-SCI-FOU ; 2021:40
Keywords
grand unified theories, renormalization group equations, neutrino masses, threshold effects, gauge coupling unification
National Category
Subatomic Physics
Research subject
Physics
Identifiers
urn:nbn:se:kth:diva-304346 (URN)978-91-8040-028-2 (ISBN)
Public defence
2021-11-30, FR4, AlbaNova University Center, Roslagstullsbacken 21, Stockholm, 13:00 (English)
Opponent
Supervisors
Available from: 2021-11-08 Created: 2021-11-02 Last updated: 2022-06-25Bibliographically approved

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Ohlsson, TommyPernow, Marcus

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